Fully merged exhaust

Just wanting to know who has used a fully merged exhaust for their beetle? I need to replace my current semi-merged setup on my 1641 and don't want to put the same back on when a stroked motor will enter the engine bay in a year or two...hmmm... pauses to dream of tyre shredding power.
What fully merged setup have people used and how much did they pay?
By the way, have 45 drla dellortos and will eventually have big valve heads.
Thanks guys and gals!!!
Vassy

Surely someone out there is using fully merged setup?
Love to know the ins and outs.
cheers
vassy
😉

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